Discussion Closed This discussion was created more than 6 months ago and has been closed. To start a new discussion with a link back to this one, click here.
Modeling transport equation with additional terms
Posted 2023年4月12日 GMT-4 13:11 Equation-Based Modeling, Molecular Flow, Physics Interfaces Version 6.0 0 Replies
Please login with a confirmed email address before reporting spam
Hello everyone,
I am trying to model the oxygen movement inside the blood stream. I am using Transport of Diluted Species with convection.
The equation I'm trying to model is
Where 
is the diffusion coefficient, 
is the solubility coefficient, 
is the velocity field of the blood, 
and 
are constants, and 
is a function with respect to pressure
My questions are 1. How do I get the partial pressure instead of the default concentration
2. In comsol, the term multiplied by the velocity field is the gradient of the concentration, how do I change it so that I have this whole term 
multiplied by the velocity field?
Hello Mohammed
Your Discussion has gone 30 days without a reply. If you still need help with COMSOL and have an on-subscription license, please visit our Support Center for help.
If you do not hold an on-subscription license, you may find an answer in another Discussion or in the Knowledge Base.